31484120

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{14851}}^1$

素因数の和:14915

約数の個数: 32

約数和(自身を含む): 72180720

約数和(自身を除く): 40696600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 14851, 29702, 59404, 74255, 118808, 148510, 297020, 594040, 787103, 1574206, 3148412, 3935515, 6296824, 7871030, 15742060, 31484120]

約数ペア:

[(1, 31484120), (2, 15742060), (4, 7871030), (5, 6296824), (8, 3935515), (10, 3148412), (20, 1574206), (40, 787103), (53, 594040), (106, 297020), (212, 148510), (265, 118808), (424, 74255), (530, 59404), (1060, 29702), (2120, 14851)]